@techreport{NBERw8850,
 title = "Markups, Gaps, and the Welfare Costs of Business Fluctuations",
 author = "Jordi Gali and Mark Gertler and J. David Lopez-Salido",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "8850",
 year = "2002",
 month = "March",
 URL = "http://www.nber.org/papers/w8850",
}